Dell OptiPlex?? GX520 GX620 Internal Speaker code? Small speaker/amp, approx. 1 1/8 " dia. by 3/4" deep. Red, Blk, Grn, & Wht wires out of speakere housing. Built in amp on housing. Robert [email protected]

I purchased from Dell two speakers that they use in their OptiPlex computers. There are four wires coming from the housing Red, Black, Green, and White. I thought I was purchasing just a speaker but after receiving them I see that there is an ampllifier circuit built on to the housing. I thought there may be a standard color code for the four wires so that I could take advantage of the attached amplifier. The whole unit is very compact and tracing the circuit is not possible. Dell did not publish any information that would help. The PCB did indicate it needed 5V power. On the controller board that these speakers would provide audio there is available 5v regulated supply and an audio out connection. Using the speaker preamp would save me much needed space on the controller board of my project. I purchased from Dell two speakers that they use in their OptiPlex computers. There are four wires coming from the housing Red, Black, Green, and White. I thought I was purchasing just a speaker but after receiving them I see that there is an ampllifier circuit built on to the housing. I thought there may be a standard color code for the four wires so that I could take advantage of the attached amplifier. The whole unit is very compact and tracing the circuit is not possible. Dell did not publish any information that would help. The PCB did indicate it needed 5V power. On the controller board that these speakers would provide audio there is available 5v regulated supply and an audio out connection. Using the speaker preamp would save me much needed space on the controller board of my project.

Speaker code? Please be more specific with your question. Speaker code? Please be more specific with your question.